Spending on Search Ads Just Keeps Growing

Spending on Search Ads Just Keeps Growing 

According to estimates from eMarketer, search ads accounted for over 45% of all digital ad spending in the U.S. in 2014. On a global basis that number was even higher, at 48.4%.

http://blogs.wsj.com/cmo/2015/07/10/spending-on-search-ads-just-keeps-growing/